Hopeful new research suggests schools can help prevent, or at least delay, the onset of this damaging dynamic. The key is creating an atmosphere in which people of all kinds are welcomed and valued.

“When schools emphasize the value of diversity, students of color are healthier,” writes a research team led by University of Washington psychologist Cynthia Levine. This positive effect was found even after taking into account other factors that could affect student health, including student-teacher ratios and the kids’ socioeconomic status…..